Daily Multivitamin Linked With Lower Cataract Risk For Men

Long-term daily use of multivitamin supplements is associated with a decreased risk for cataracts in men, according to a new study that was conducted by a research team at the Harvard Medical School.

The study was published in the journal Ophthalmology. Half of the 14,641 US male doctors participating in the study took a multivitamin, vitamin C, vitamin E and beta carotene supplements every day from 1997 to 2011. The other half of the participants took a placebo.

Over the study period, 9Multi Vitamin for Men Review45 people who took the placebo developed cataract, while 872 people who took the multivitamins developed cataract. Those who took the vitamins had a 9 percent lower risk of developing cataracts over the study period, and a 13 percent lower risk of developing a type of cataract called nuclear cataract (the most common kind of aging-related cataract).

“If multivitamins really do reduce the risk of cataract, even by a modest 10 percent, this rather small reduction would nonetheless have a large public health impact,” study researcher William Christen, ScD, from Harvard Medical School, said in a statement.

While this new research doesn’t include why multivitamins appear linked to decreased cataract risk, the likely answer is antioxidants, as oxidative stress may be the reason for cataract development.

The study also showed a small increased risk for age-related macular degeneration among the multivitamin users — there were 152 new cases of the condition among vitamin users, compared with 129 cases among the placebo users — but researchers noted that this was not a statistically significant increased risk.

Indeed, this particular finding linking multivitamin use with age-related macular degeneration should not change clinical recommendations; rather, it should only be looked at as a further point of research, said Emily Y. Chew, M.D., clinical spokesperson for the American Academy of Ophthalmology who was not involved in the study.

Other recent studies on multivitamins, such as a recent Annals of Internal Medicine editorial, indicated that multivitamins have very little effect in preventing chronic disease and other health problems. However, as noted by Emily Y. Chew, M.D., “eye health is somewhat different” in regards to multivitamin benefits.

While the new study did not examine why exactly multivitamins seem to be linked with a decreased cataract risk, Chew told Huff Post that antioxidants from the vitamins are the “most likely cause since oxidative stress might be why cataracts occur.”

Multivitamins have been in the news recently, but not exactly in a positive light — a recent Annals of Internal Medicine editorial, for instance, said that research does not seem to show a health benefit in preventing chronic disease or death from taking multivitamins. The editorial was published in response to three studies published in the same journal, exploring the effects of multivitamins on men’s cognitive functioning and post-heart attack heart health, as well as vitamins and mineral supplements in heart disease and cancer prevention.

However, Chew explained that when it comes to multivitamin benefits (or lack thereof), eye health is somewhat different. Indeed, some research has suggested that vitamins can slow the progression of age-related macular degeneration (though not prevent it altogether from people who don’t yet have the condition).

Researchers noted that the seemingly disparate findings between the new study and past research — since the new study showed aMulti Vitamin for Men Review statistically insignificant increased risk of age-related macular degeneration, while the past research showed a decreased risk of the condition with taking vitamins — are likely due to the fact that the studies used different supplements with different dosing and objectives.

Additional research by the National Eye Institute has also suggested a link between supplement intake and a decreased risk of age-related eye diseases.

Chew also notes that nutrients from food are the best bet for eye health.

“But remember that diet is important,” “Health starts with dietary habits.”

 

Vitamin A is important for your eyesight

Vitamin A is commonly known as the vitamin needed for good eyesight.   A vitamin A deficiency primarily causes impaired vision and increases susceptibility to infectious diseases.

multivitamin for men reviewWhen we look at objects, light is reflected from the object and enters the eye, striking a tissue located in the back of the eye. This tissue is known as the retina. When light strikes the retina, retinol is converted to retinal, which is then shuttled to rods – the cells that help you to see in the dark. In rod cells, retinal binds to a protein called opsin. As a result, opsin changes shape and causes nerve impulses to be generated. These nerve impulses then carry messages to the brain regarding the objects in our visual field. Retinal is then converted back to retinol, ending the visual cycle.

A hallmark of vitamin A deficiency is night blindness – an impaired ability to see in low light conditions. This is because with a reduced availability of retinol, the nerve impulses necessary for our brain to interpret visual information are hindered.

The benefits of Vitamin A are good for your eyes and eyesight   in 3 major ways: helps prevent night blindness, prevents cataracts (like Vitamin C) and helps to preserve eyesight. Let’s go over how Vitamin A & beta carotene benefits each one…

For Night Blindness… your retinas are light-sensitive cells that have a large amount of Vitamin A stored in it. And within your retinas you have a thing called rods and cones. Rods and cones allow you to see black & white and colors, respectively. The rods are specifically used for night vision.

Without getting too scientific, rods use the combination of a special protein called opsin and a specific form of Vitamin A (called retinal) in order to function properly. Without the Vitamin A portion… the rods would not work properly and you won’t be able to see that well in dark or in dim lighting. This is especially true as you get older.

The next one is about Cataracts. Cataracts form when the lens of the eye becomes cloudy… making it very difficult to see. Cataracts used to be one of the leading causes of blindness.

But a better way to prevent this from happening (and avoiding the surgery to fix it) is having a diet rich in carotenoids… especially beta carotene.

The antioxidant power of beta carotene wipes out the free radicals before they damage the lens.

Vitamin C is also helpful in preventing cataracts. So combining these 2 will definitely help to prevent cataracts.

And lastly is helping to preserve your eyesight. As you grow older there is a thing called Age-Related Macular Degeneration (AMD) which causes some vision loss. AMD is one of the leading causes of blindness in people older than 65. And about 31% of Americans 75 and older has it.

One study suggests that eating just one serving of a food high in Vitamin A or beta carotene can reduce the chances of AMD by almost half! A few other carotenoids (i.e. Lutein and zeaxanthin) are also helpful in preserving your eyesight as you get older.

So if you like your eyes and want to keep your eyesight healthy for a long time… it’s best to take Multivitamin for men. It includes Vitamin A and beta carotene and all you need.